Fan



' Dec. 30, 1947. G. A. STOKES, 2,433,795

FAN

Filed Aug. 18, 1945 George JLSfolres.

B! W J W ATTORNEY.

Patented Dec. 30, 1947 FAN George A. Stokes, Dedham, Mass, assignor, bymesne assignmenta'to Westinghouse Electric Corporation, a corporation ofPennsylvania Application August 18, 1945, Serial No. 611,295

Claims.

This invention relates to fans, and relates more particularly toso-called desk fans.

The usual desk fan is uns ghtly due to the arrangement of the blades andmotor, andhas the additional disadvantage that the air is projectedtherefrom in a relatively narrow stream.

This invention provides a desk fan which is not only ornamental butwhich projects air outwardly from the fan in all directions as well asupwardly and downwardly.

In one embodiment of the invention. a rubber a plurality of spiral slotsformed therein for providing fan blades therebetween.

Objects of the invention are to improve the performance, safety andappearance of desk type fans.

The invention will now be described with reference to the drawing. ofwhich:

Fig. 1 is a side elevation of a desk fan embodying this invention; i

Fig. 2 is a sectional view al'ong the lines 2-2 of Fig. 1. and a Fig. 3is a sectional view along the lines 3-3 of Fig. 2.

The symmetrical bowl 8 which may be of rubber or other suitablematerial, is inverted over and around the motor 5, and has an uppercentral aperture which extends closely around the tapered upper portion9 oi the vertically extending motor shaft 1. The upper portion of theshaft 1 is threaded and the nut I0 is screwed thereon against the uppersurface of the bowl 8 around the shaft portion 9 and retains the bowl inposition upon the shaft for rotation therewith.

The motor 5 is supported upon the base 6.

The lower endof the inverted bowl 8 is spaced from the base 6 forforming therearound an air inlet passage ll.

The bowl 8 has formed therein a plurality of inwardly converging, spiralslots I! which extend through its walls. and which have their outletsarranged in a plurality of horizontal rows,

the slots in each row being so shaped and spaced project the air throughthe slots It in all directions around the fan as illustrated by Fig. 2.

The motor 5 is hidden from view by the symmetrically arranged bowl 8providing an ornamental construction.

The bowl 8 is preferably formed from rubber or other soft and resilientmaterial whereby no injury can be caused by accidentally touching thebowl when it is rotating.

While one embodiment of the invention has been described for the purposeof illustration, it should be understood that the invention is notlimited to the exact construction illustrated as modifications thereofmay be suggested by those skilled in the art without departure from theessence of the invention.

What is claimed is:

1. A fan comprising a base, a motor supported with vertically extendingshaft on said base, an inverted bowl having relatively thick walls, andmeans attaching said bowl to said shaft for rotation therewith, saidbowl having a lower open end spaced from said base and forming an airinlet passage around same, said bowl having a plurality of slots formedtherein, the walls of said bowl between said slots forming fan blades,

2. A fan comprising a base, an electric motor supported with verticallyextending shaft on said base, and an inverted bowl attached to the upperend of' 'said shaft and extending around said.

motor and the upper portion of said base, said bowl having an open lowerend spaced from said base and forming an air inlet passage therearound,said bowl having relatively thick walls with a plurality of slots formedtherein. said walls between said slots forming therebetween fan blades.said walls having thicknesses greater than the widths of the inneropenings of said slots,

3. A fan comprising a base, an electric motor supported with verticallyextending shaft on said base. and an inverted bowl attached to the u perend of said shaft and extending around said motor and the upper end ofsaid base, said bowl having an open lower end spaced from said base andforming an air inlet passage thcrearound, said bowl having relativelythick walls with a plurality of spiral slots formed therein, said wallsbetween said slots forming fan blades,'said slots v extending upwardly,downwardly and outwardly at different angles to said shaft.

(ill

4. A fan according to claim 2 in which said slotsdiverge outwardly andare formed in spirals. 5. A fan according to claim 3 in which said slotsare backwardly curved with respect to rotation of said motor.

GEORGE A. STOKES- REFERENCES CITED The following references are oirecord in the tile 01 this patent:

UNITED STATES PATENTS Number Name Date v 2,120,277 Grierson June 14,1938 2,308,335 Mackey et al. Jan. 12, 1943

